/*---------------------------------------------------------------------------*
  Project:  NitroSDK - GX - demos - UnitTours/2D_CharBg_8
  File:     main.c

  Copyright 2003,2004 Nintendo.  All rights reserved.

  These coded instructions, statements, and computer programs contain
  proprietary information of Nintendo of America Inc. and/or Nintendo
  Company Ltd., and are protected by Federal copyright law.  They may
  not be disclosed to third parties or copied or duplicated in any form,
  in whole or in part, without the prior written consent of Nintendo.

  $Log: main.c,v $
  Revision 1.27  2004/11/02 09:35:11  takano_makoto
  fix typo.

  Revision 1.26  2004/05/24 10:30:05  takano_makoto
  fixed autotest code

  Revision 1.25  2004/04/07 01:23:27  yada
  fixed header comment

  Revision 1.24  2004/04/06 12:48:06  yada
  fixed header comment

  Revision 1.23  2004/02/24 05:25:21  yasu
  used OS_EnableIrqMask instead of OS_SetIrqMask

  Revision 1.22  2004/02/09 01:44:47  kitani_toshikazu
  added default setting codes for auto testing.

  Revision 1.21  2004/02/05 07:09:02  yasu
  changed SDK prefix iris -> nitro

  Revision 1.20  2004/02/05 01:15:24  kitani_toshikazu
  added codes for autoTesing.

  Revision 1.18  2004/01/19 02:15:56  nishida_kenji
  fixed comments

  Revision 1.17  2004/01/18 09:20:26  nishida_kenji
  added DEMOStartDisplay

  Revision 1.16  2004/01/18 07:12:43  nishida_kenji
  changed the place of SVC_WaitVBlankIntr

  Revision 1.15  2004/01/09 12:02:34  nishida_kenji
  used OS_SetIrqCheckFlag at VBlankIntr()

  Revision 1.14  2004/01/07 09:38:05  nishida_kenji
  revised comments

  Revision 1.13  2003/12/25 11:00:09  nishida_kenji
  converted by GX_APIChangeFrom031212-2.pl

  Revision 1.12  2003/12/17 11:35:17  nishida_kenji
  used DC_FlushRange

  Revision 1.11  2003/12/17 09:00:20  nishida_kenji
  Totally revised APIs.
  build/buildtools/GX_APIChangeFrom031212.pl would help you change your program to some extent.
  $NoKeywords: $
 *---------------------------------------------------------------------------*/

//---------------------------------------------------------------------------
// A sample that controls two built-in windows:
//
// USAGE:
//   A + [UP, DOWN, LEFT, RIGHT]: Move the position of the window 1.
//   B + [UP, DOWN, LEFT, RIGHT]: Move the position of the window 2.
//   L + [UP, DOWN, LEFT, RIGHT]: Change the size of the window 1.
//   R + [UP, DOWN, LEFT, RIGHT]: Change the size of the window 2.
//
// HOWTO:
// 1. Set windows visible by GX_SetVisibleWnd().
// 2. Specify planes inside a window by G2_SetWndxInsidePlane().
// 3. Specify planes outside windows by G2_SetWndOutsidePlane().
// 4. Set the size and the position of a window by G2_SetWnd0Position().
//---------------------------------------------------------------------------

#include <nitro.h>
#include "DEMO.h"
#include "data.h"

void NitroMain(void)
{
    int win1_x = 0, win2_x = 50, size1_x = 60, size2_x = 110;
    int win1_y = 0, win2_y = 50, size1_y = 60, size2_y = 110;

    //---------------------------------------------------------------------------
    // Initialization:
    // They enable IRQ interrupts, initialize VRAM, and set BG #0 for text mode.
    //---------------------------------------------------------------------------
    DEMOInitCommon();
    DEMOInitVRAM();
    DEMOInitDisplayBG0Only();

    //---------------------------------------------------------------------------
    // Transmitting the character data and the palette data
    //---------------------------------------------------------------------------
    GX_LoadBG0Char(d_natsunoumi_schDT, 0, sizeof(d_natsunoumi_schDT));
    GX_LoadBGPltt(d_natsunoumi_sclDT, 0, sizeof(d_natsunoumi_sclDT));
    GX_LoadBG0Scr(d_natsunoumi_sscDT, 0, sizeof(d_natsunoumi_sscDT));

    GX_SetVisibleWnd(GX_WNDMASK_W0 | GX_WNDMASK_W1);       // makes window #0 and window #1 visible

    //---------------------------------------------------------------------------
    // Setting the visible plane inside each window
    //---------------------------------------------------------------------------
    G2_SetWnd0InsidePlane(GX_WND_PLANEMASK_BG0,            // BG #0 is visible inside window #0
                          FALSE                            // you can limit the zone of alpha blending applied if TRUE
                          );
    
    G2_SetWnd1InsidePlane(GX_WND_PLANEMASK_BG0,            // BG #0 is visible inside window #1
                          FALSE                            // you can limit the zone of alpha blending applied if TRUE
                          );

    //---------------------------------------------------------------------------
    // Setting the visible plane outside the windows
    //---------------------------------------------------------------------------
    G2_SetWndOutsidePlane(GX_WND_PLANEMASK_NONE, FALSE);   // not visible

    DEMOStartDisplay();
    //---------------------------------------------------------------------------
    // Main Loop
    //---------------------------------------------------------------------------
    while (1)
    {
        DEMOReadKey();

        if (DEMO_IS_PRESS(PAD_BUTTON_A))
        {
            if (DEMO_IS_PRESS(PAD_KEY_UP))
                win1_y--;
            if (DEMO_IS_PRESS(PAD_KEY_DOWN))
                win1_y++;
            if (DEMO_IS_PRESS(PAD_KEY_RIGHT))
                win1_x++;
            if (DEMO_IS_PRESS(PAD_KEY_LEFT))
                win1_x--;
        }
        else if (DEMO_IS_PRESS(PAD_BUTTON_B))
        {
            if (DEMO_IS_PRESS(PAD_KEY_UP))
                win2_y--;
            if (DEMO_IS_PRESS(PAD_KEY_DOWN))
                win2_y++;
            if (DEMO_IS_PRESS(PAD_KEY_RIGHT))
                win2_x++;
            if (DEMO_IS_PRESS(PAD_KEY_LEFT))
                win2_x--;
        }
        else if (DEMO_IS_PRESS(PAD_BUTTON_L))
        {
            if (DEMO_IS_PRESS(PAD_KEY_UP))
                size1_y--;
            if (DEMO_IS_PRESS(PAD_KEY_DOWN))
                size1_y++;
            if (DEMO_IS_PRESS(PAD_KEY_RIGHT))
                size1_x++;
            if (DEMO_IS_PRESS(PAD_KEY_LEFT))
                size1_x--;
        }
        else if (DEMO_IS_PRESS(PAD_BUTTON_R))
        {
            if (DEMO_IS_PRESS(PAD_KEY_UP))
                size2_y--;
            if (DEMO_IS_PRESS(PAD_KEY_DOWN))
                size2_y++;
            if (DEMO_IS_PRESS(PAD_KEY_RIGHT))
                size2_x++;
            if (DEMO_IS_PRESS(PAD_KEY_LEFT))
                size2_x--;
        }
        
        #ifdef SDK_AUTOTEST
        GX_SetBankForLCDC( GX_VRAM_LCDC_C );
        EXT_TestSetVRAMForScreenShot( GX_VRAM_LCDC_C );
        EXT_TestScreenShot( 100, 0x61C32E25 );
        EXT_TestTickCounter();
        #endif //SDK_AUTOTEST
        
        SVC_WaitVBlankIntr();                              // Waiting for the end of V-Blank interrupt
        
        //---------------------------------------------------------------------------
        // Specifying the position of the window #0
        //---------------------------------------------------------------------------
        G2_SetWnd0Position(win1_x, win1_y,                           // the upper left
                           win1_x + size1_x, win1_y + size1_y        // the lower right
                           );

        //---------------------------------------------------------------------------
        // Specifying the position of the window #1
        //---------------------------------------------------------------------------
        G2_SetWnd1Position(win2_x, win2_y,                           // the upper left
                           win2_x + size2_x, win2_y + size2_y        // the lower right
                           );
    }
}

//---------------------------------------------------------------------------
// V-Blank interrupt function:
//
// Interrupt handlers are registered on the interrupt table by OS_SetIRQFunction.
// OS_EnableIrqMask selects IRQ interrupts to enable, and
// OS_EnableIrq enables IRQ interrupts.
// Notice that you have to call 'OS_SetIrqCheckFlag' to check a V-Blank interrupt.
//---------------------------------------------------------------------------
void VBlankIntr(void)
{
    OS_SetIrqCheckFlag( OS_IE_V_BLANK );                   // checking V-Blank interrupt
}
